尝试处理通过 POST 方法接收的 JSON 数组 (Retrofit2)
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【中文标题】尝试处理通过 POST 方法接收的 JSON 数组 (Retrofit2)【英文标题】:Trying to process a JSON array that is received through POST method (Retrofit2) 【发布时间】:2020-02-29 07:39:07 【问题描述】:我在尝试解析通过 POST 方法检索到的 JSON 数组时遇到了困难。我对此非常陌生,请原谅我的任何无知。
RequestInterface.java
public interface RequestInterface
@POST("index.php/")
Call<Classes> queryclass(@Body ServerRequest request);
类.java
public class Classes
@SerializedName("classname")
private String classname;
@SerializedName("subject")
private String subject;
@SerializedName("classday")
private String classday;
@SerializedName("timestart")
private String timestart;
@SerializedName("timeend")
private String timeend;
public Classes(String classname, String subject, String classday, String timestart, String timeend)
this.classname = classname;
this.subject = subject;
this.classday = classday;
this.timestart = timestart;
this.timeend = timeend;
public String getClassname()
return classname;
ServerRequest.java
public class ServerRequest
private String queryclass;
private User user;
public void setQueryClass(String queryclass) this.queryclass = queryclass;
public void setUser(User user)
this.user = user;
活动(改造)
User user = new User();
user.setEmail(email);
ServerRequest request = new ServerRequest();
request.setQueryClass(Constants.QUERYCLASSES_OPERATION);
request.setUser(user);
Call<Classes> response = requestInterface.queryclass(request);
response.enqueue(new Callback<Classes>()
@Override
public void onResponse(Call<Classes> call, Response<Classes> response)
if(!response.isSuccessful())
tvData.setText(response.code());
return;
Classes resp = response.body();
String content = "";
content += "code: " + response.code() + "\n";
content += "classname: " + resp.getClassname() + "\n";
tvData.setText(content);
@Override
public void onFailure(Call<Classes> call, Throwable t)
Toast.makeText(getApplicationContext(),t.getLocalizedMessage(), Toast.LENGTH_SHORT).show();
Log.d("TAG",t.getLocalizedMessage());
);
我要显示的 JSON 数组(邮递员)
[
"classname": "PHYS1201",
"subject": "PHYS12",
"classday": "THU",
"timestart": "18:00:00",
"timeend": "20:00:00"
,
"classname": "CHEM1202",
"subject": "CHEM12",
"classday": "FRI",
"timestart": "12:00:00",
"timeend": "14:00:00"
]
它只是在应用程序运行时显示“classname: null”。对这么长且令人困惑的帖子感到抱歉,我们将不胜感激。
澄清: POST 请求正在发送一个电子邮件(id),它返回该特定 id 的类数组。这在邮递员中有效,给了我上面显示的数组,但由于某种原因,Retrofit 没有将响应识别为数组。我曾尝试使用 List,但它似乎将响应识别为对象,而不是数组。
【问题讨论】:
【参考方案1】:如果要获取 JSON 数组值,请使用列表。
像这样:
public interface RequestInterface
@POST("index.php/")
Call<List<Classes>> queryclass(@Body ServerRequest request);
【讨论】:
当我使用列表时,改造无法识别响应并显示“预期 BEGIN_ARRAY 但找到 BEGIN_OBJECT”以上是关于尝试处理通过 POST 方法接收的 JSON 数组 (Retrofit2)的主要内容,如果未能解决你的问题,请参考以下文章